(1) Different types of electromagnetic radiation such as radio waves, microwaves, visible light, and x-rays are associated with specific wavelengths. A spectrophotometer is an instrument that performs ...

It enables X-ray light with photon energies of more than 15 kiloelectronvolts to ...

However, visible light rays are absorbed by walls, which is why windows are needed to allow the Sun's rays into a building. Walls also absorb ultraviolet rays, which is why people don't get ...

Now, this same black hole is once again captivating scientists with an extraordinary gamma-ray flare that’s emitted photons ...

Fluorescent substances are used in energy-efficient lamps - they absorb ultraviolet light produced inside the lamp, and re-emit the energy as visible light ... Gamma rays are produced by changes ...